websocket closing and/or on-open error #104
Comments
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Hmm... I guess this one will be difficult to debug. Can you try again with |
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Here's the backtrace: Here's the websocket shell debug: |
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Please use triple backquotes when pasting backtrace and logs, otherwise they are not readable. I edited your comment above. You should have two WS logs "shell" and "iopub". You can open them using But I don't know what is happning here. Here is a somewhat brute force fix. What happens if you evaluate the following and then open the notebook? Do you still get the error? (defun ein:kernelinfo-new (kernel get-buffers)
)This code just skips extra stuff going on in on-open callback. Normally you should be able to use EIN without steps in this function. |
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Here's the iopub debug: When I create an empty kernelinfo-new, here's the new backtrace: |
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Ah, so that was not enough. How about this: (defun ein:kernel-run-after-start-hook (kernel)) |
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Redefined both and here's the new backtrace: |
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After debugging a bit more, it looks like the port I was connected to (8888) was owned by a zombie ipython notebook that was not associated with my uid (which is why I didn't see it earlier). After killing it, all the problems go away. I can use ein in my standard emacs environment with no issue whatsoever. Using ipython notebook --pylab inline works fine too. Sorry for creating so much trouble! I wonder if the existing debug messages are sufficient to identify when the issue is on the server side? Will close this bug now. |
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Well, I learned some lessons and reflected them to the bug report template: 7f17f3b |
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On OS X, running emacs/ein via:
$ EMACS=/usr/local/Cellar/emacs/HEAD/Emacs.app/Contents/MacOS/Emacs lisp/zeroein.el
Steps to reproduce the problem
Expected output
The notebook opens, no error messages.
Your EIN configuration (in .emacs.d/init.el or somewhere else)
using zeroein
Your IPython configuration
ipython --version):$ ipython --version
0.13.1
ipython notebook --port 9999):ipython notebook
localhost:8888
Additional information (if any)
ipython + zmq installed installed by pip. zeromq=3.2.2 installed via
brew (pyzmq uses this version). tornado in ipython version 2.4.1,
pyzmq version 13.0.0.
System info:
Messages
debug-on-error=t websocket-debug=t websocket-callback-debug-on-error=nil ein:debug=t ein:log-level=debug ein:log-message-level=verbose
ein: [info] Opening notebook 62a49637-6b89-454d-bd2f-2ccf94e89fa1...
ein: [info] Worksheet Untitled0 is ready
Making mumamo-bug-3467-w14 local to temp while let-bound!
Tested for Bug 3467 => PASSED
ein: [info] Notebook Untitled0 is ready
ein: [info] Kernel started: bbbb69e9-11e1-4b50-ae1d-97f829d6a06b
ein: [info] Starting WS: "ws://127.0.0.1:8888/kernels/bbbb69e9-11e1-4b50-ae1d-97f829d6a06b"
Error found in callback
on-open': [cl-struct-websocket-frame text {"header":{"msg_id":"ca13c350-904d-4d01-9c00-5704851e363d","username":"username","session":"c4df7ad1-167e-4eda-8e7e-b1f592d6e8d9","msg_type":"execute_request"},"metadata":{},"content":{"code":"__import__('sys').stdout.write(__import__('os').getcwd())","silent":true,"user_variables":[],"user_expressions":{},"allow_stdin":false},"parent_header":{}} nil t] Error found in callbackon-open': (ein:$websocket-onopen accessing a non-ein:$websocket)Mark set [3 times]
websocket ws:///..../shell debug
[WS] Sending handshake, key: ZmplzHUA5XVNauqzmDppSA==, acceptance: j3zAZFvRpdQxQyRGIH7NORDvUfk=
[WS] Websocket opened
[WS] Received: HTTP/1.1 101 Switching Protocols
Upgrade: websocket
Connection: Upgrade
Sec-WebSocket-Accept: j3zAZFvRpdQxQyRGIH7NORDvUfk=
[WS] Checking for accept header: Sec-WebSocket-Accept: j3zAZFvRpdQxQyRGIH7NORDvUfk=
[WS] Checking for upgrade header
[WS] Checking for connection header
[WS] Sending frame, opcode: text payload: username=
[WS] Sending frame, opcode: text payload: {"header":{"msg_id":"ca13c350-904d-4d01-9c00-5704851e363d","username":"username","session":"c4df7ad1-167e-4eda-8e7e-b1f592d6e8d9","msg_type":"execute_request"},"metadata":{},"content":{"code":"import('sys').stdout.write(import('os').getcwd())","silent":true,"user_variables":[],"user_expressions":{},"allow_stdin":false},"parent_header":{}}
[WS] Closing websocket
[WS] State change to deleted
[WS] Sending handshake, key: IfcUBziTB2WzxAzQkfbczg==, acceptance: JC5x68G56ATrQ6hOHzc5aREqIZc=
[WS] Websocket opened
[WS] Received: HTTP/1.1 101 Switching Protocols
Upgrade: websocket
Connection: Upgrade
Sec-WebSocket-Accept: JC5x68G56ATrQ6hOHzc5aREqIZc=
[WS] Checking for accept header: Sec-WebSocket-Accept: JC5x68G56ATrQ6hOHzc5aREqIZc=
[WS] Checking for upgrade header
[WS] Checking for connection header
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